title: Microgravity research during aircraft parabolic flights: the 20 ESA campaigns.
mesh_terms: D000222:Adaptation, Physiological; D001690:Biological Science Disciplines; D005060:Europe; D006801:Humans; D007390:International Agencies; D055585:Physical Phenomena; D010825:Physics; D012106:Research / Q000639:trends*; D013026:Space Flight / Q000639:trends*; D018531:Spacecraft; D014893:Weightlessness